San Francisco 49ers head coach Jim Harbaugh is seen during the first round of the AT&T Pebble Beach National Pro-Am at the Monterey Peninsula Country Club on February 7, 2013 in Pebble Beach, California.

San Francisco 49ers head coach Jim Harbaugh is seen during the first round of the AT&T Pebble Beach National Pro-Am at the Monterey Peninsula Country Club on February 7, 2013 in Pebble Beach, California.

Photo: Harry How, Getty Images

San Francisco 49ers head coach Jim Harbaugh is seen during the... Photo-4408106.49301 - StamfordAdvocate

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San Francisco 49ers head coach jIm Harbaugh hits his tee shot to the par-3 third hole at the Monterey Peninsula Country Club, during the first round of play at the 2013 Pebble Beach National Pro-Am golf tournament on Thursday Feb. 7, 2013, in Pebble Beach, Ca. less

San Francisco 49ers head coach jIm Harbaugh hits his tee shot to the par-3 third hole at the Monterey Peninsula Country Club, during the first round of play at the 2013 Pebble Beach National Pro-Am golf ... more

San Francisco 49ers Head Coach Jim Harbaugh argues a call with referee Walt Anderson during the fourth quarter against the visiting Seattle Seahawks at Candlestick Park in San Francisco, Calif. on Thursday, October 18, 2012. The 49ers defeated the Seahawks 13-6. less

San Francisco 49ers Head Coach Jim Harbaugh argues a call with referee Walt Anderson during the fourth quarter against the visiting Seattle Seahawks at Candlestick Park in San Francisco, Calif. on Thursday, ... more

San Francisco 49ers head coach Jim Harbaugh, right, reacts as he talks with referee Walt Anderson (66) during the second half of an NFL football game against the Seattle Seahawks in San Francisco, Thursday, Oct. 18, 2012. less

San Francisco 49ers head coach Jim Harbaugh, right, reacts as he talks with referee Walt Anderson (66) during the second half of an NFL football game against the Seattle Seahawks in San Francisco, Thursday, ... more

San Francisco 49ers head coach Jim Harbaugh, left, talks with quarterback Alex Smith (11) prior to an NFL football game against the Arizona Cardinals Monday, Oct. 29, 2012, in Glendale, Ariz. The 49ers defeated the Cardinals 24-3. less

San Francisco 49ers head coach Jim Harbaugh, left, talks with quarterback Alex Smith (11) prior to an NFL football game against the Arizona Cardinals Monday, Oct. 29, 2012, in Glendale, Ariz. The 49ers ... more

San Francisco 49ers head coach Jim Harbaugh reacts to a penalty called against his team during the first half of an NFL football game against the Minnesota Vikings Sunday, Sept. 23, 2012, in Minneapolis.

San Francisco 49ers head coach Jim Harbaugh reacts to a penalty called against his team during the first half of an NFL football game against the Minnesota Vikings Sunday, Sept. 23, 2012, in Minneapolis.

FILE - This Aug. 26, 2012 file photo shows San Francisco 49ers head coach Jim Harbaugh, right, arguing with a replacement official during the second quarter of an NFL preseason football game against the Denver Broncos, in Denver. The NFL will open the regular season with replacement officials. League executive Ray Anderson has told the 32 teams that with negotiations remaining at a standstill between the NFL and the officials' union. The replacements will be on the field beginning next Wednesday night, Sept. 5, 2012 when the Cowboys visit the Giants to open the season. (AP Photo/Joe Mahoney, File) less

FILE - This Aug. 26, 2012 file photo shows San Francisco 49ers head coach Jim Harbaugh, right, arguing with a replacement official during the second quarter of an NFL preseason football game against the Denver ... more

Jim Harbaugh talked with Frank Gore near the end of the game. The San Francisco 49ers defeated the Detroit Lions 27-19 at Candlestick Park Sunday September 16, 2012.

Jim Harbaugh talked with Frank Gore near the end of the game. The San Francisco 49ers defeated the Detroit Lions 27-19 at Candlestick Park Sunday September 16, 2012.

Photo: Brant Ward, The Chronicle

Jim Harbaugh talked with Frank Gore near the end of the game. The... Photo-3476321.49301 - StamfordAdvocate

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San Francisco 49ers head coach Jim Harbaugh tosses a football prior to an NFL football game against the Arizona Cardinals Monday, Oct. 29, 2012, in Glendale, Ariz. The 49ers defeated the Cardinals 24-3.

San Francisco 49ers head coach Jim Harbaugh tosses a football prior to an NFL football game against the Arizona Cardinals Monday, Oct. 29, 2012, in Glendale, Ariz. The 49ers defeated the Cardinals 24-3.

Detroit Lions head coach Jim Schwartz, left, shakes hands with San Francisco 49ers head coach Jim Harbaugh at the end of an NFL football game in San Francisco, Sunday, Sept. 16, 2012. San Francisco won 27-19.

Detroit Lions head coach Jim Schwartz, left, shakes hands with San Francisco 49ers head coach Jim Harbaugh at the end of an NFL football game in San Francisco, Sunday, Sept. 16, 2012. San Francisco won 27-19.

San Francisco 49ers head coach Jim Harbaugh, left, listens to replacement line judge Eric Hoffman during the second half of an NFL football game against the Minnesota Vikings Sunday, Sept. 23, 2012, in Minneapolis. less

San Francisco 49ers head coach Jim Harbaugh, left, listens to replacement line judge Eric Hoffman during the second half of an NFL football game against the Minnesota Vikings Sunday, Sept. 23, 2012, in ... more